Equilibrium
At equilibrium, what is happening to the rates of the forward and reverse reactions?
they are EQUAL
What is the purpose of le chatelier's principle? i.e. how would you define it?
Le Chatelier's principle is the concept that the equilibrium will shift to regain balance when the reaction is disturbed in some way
What is the Bronsted Lowry definition of an acid?
donates an H+ molecule (proton)
What is the term for something that can act as an acid OR a base depending on the situation?
amphiprotic
At equilibrium, what is happening to the concentrations of the reactants and products?
they stay the SAME
Which direction will the equilibrium shift if you remove products?
to the right
What is the Arrhenius definition of a base?
Increases the [OH-] in an aqueous solution
What is the value of Kw?
1.0 x 10^-14
What is the equation for the equilibrium constant expression?
Kc is the concentrations of the products raised to the power of their coefficients divided by concentrations of the reactants raised to the power of their coefficients
Which direction will the equilibrium shift for an exothermic reaction if you increase the heat?
to the left
What is the Lewis definition of an acid?
accepts a lone pair of electrons
True or false: catalysts affect where the equilibrium lies
False--what do they affect when it comes to equilbrium?
If equilibrium lies toward products, is Kc greater than 1, less than 1, or equal to 1?
greater than 1
Which direction will the equilibrium shift for the reaction 2A(g) + 2B(g) <--> 3C(g) if you increase pressure?
to the right
If pOH is less than 7, is the reaction acidic, basic, or neutral?
basic
What are the seven strong acids?
HI, HCl, HBr, HNO3, HClO3, HClO4, H2SO4
What does it mean if Q is greater than Kc?
Which direction will the equilibrium shift for the reaction 2A(g) + 2B(g) <--> 3C(g) if you increase volume?
to the left
If you add CaF2 to a solution of HF, would the pH increase, decrease, or stay the same?
increase
What are the eight strong bases?
LiOH, NaOH, KOH, RbOH, CsOH, Ca(OH)2, Sr(OH)2, Ba(OH)2